For any type of Insulin, I learned: pinch the skin, DO NOT aspirate, and inject at a 45 degree angle. We learned only to inject at a 90 degree angle if the person had a lot of subcutaneous fat. We learned, in fact, never to aspirate with subcutaneous (only IM). We also learned to stabilize the needle after insertion with the nondominant hand, therefore losing the "pinch" before actually injecting the insulin (pinch skin with left hand, insert needle with right hand, stabilize needle with left hand and skin goes from pinched to flat, then inject with right hand). What is your evaluation of this method?
Now that I am in clinicals and actually having to do these injections, I have done a little research on my own time. It seems the general consensus is to pinch the skin and inject insulin at a 90 degree angle (only injecting at 45 degrees if the person is very thin).
I just would like to know from all you expert nurses where I can find the "best practice" information for insulin/subcutaneous injection technique, or if you know you can just tell me. I feel like I am getting conflicting information depending on where the information comes from.
Basically I am curious about which angle - 45 or 90. I learned 45 always with 90 as an exception, but now I am thinking I should adopt the 90 degree always with 45 as the exception. Also - keep the pinch throughout or is it only important to have the pinch while inserting the needle?